In the freezer, it has first to work well, but then refused his service. At first I thought the battery is empty. Have the thermometer then taken out and a short time later it worked. So battery OK again. Purely in the freezer Checked after half an hour. Works. The next morning looked: Off. It does not work. I have a feeling that the thermometer is colder than -20 degrees for temperatures not suitable. Too bad. Otherwise, it is very convenient because small with good display and with small hooks for hanging.
